Home / 868,707.13-1,198,815.04-486,736.65

Finding the Fourth Proportional to 868,707.13, 1,198,815.04 and 486,736.65

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Solution

The fourth proportional to 868,707.13, 1,198,815.04 and 486,736.65 is: 671,696.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,707.13 : 1,198,815.04 = 486,736.65 : x
  2. Step 2: Convert to fraction form
    868,707.13/1,198,815.04 = 486,736.65/x
  3. Step 3: Cross multiply
    868,707.13x = 1,198,815.04 × 486,736.65
  4. Step 4: Simplify right side
    868,707.13x = 583,507,208,111.46
  5. Step 5: Solve for x
    x = 583,507,208,111.46/868,707.13
  6. Step 6: Final answer
    x = 671,696.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.